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1994 Ford Ranger STX 4.0L Bucks Under Load
Vehicle has a slight miss under load going up hill at 65 mph. Serv eng lite comes on during problem and goes out after conditions improve. I pulled dtc's 172 and 173. I made all basic checks, pcv, condition of oil, fuel pressure, ect. I checked all injectors a...
FIX posted 4/12/2001
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Related Documents & Media 
| VIN | 1FTCR15X1R |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / California sefi |
| Emissions | OBD I |
| Symptoms | Bucks Under Load |
| Occurs | Under Load |
Trouble Codes
| 172 | lean o2 reading bank 1 |
| 173 | rich o2 reading bank 1 |
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Vehicle Data
1994 Ford Ranger STX
| VIN | 1FTCR15X1R |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / California sefi |
| Emissions | OBD I |
| Symptoms | Bucks Under Load |
| Occurs | Under Load |
Trouble Codes
| 172 | lean o2 reading bank 1 |
| 173 | rich o2 reading bank 1 |
Video